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1. WO2020231065 - METHOD AND APPARATUS FOR COMBINING IMAGE FRAMES CAPTURED USING DIFFERENT EXPOSURE SETTINGS INTO BLENDED IMAGES

Publication Number WO/2020/231065
Publication Date 19.11.2020
International Application No. PCT/KR2020/005970
International Filing Date 07.05.2020
IPC
H04N 5/235 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
235Circuitry for compensating for variation in the brightness of the object
H04N 5/232 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
232Devices for controlling television cameras, e.g. remote control
G06T 5/50 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
50by the use of more than one image, e.g. averaging, subtraction
G06T 5/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
CPC
G06T 5/003
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
001Image restoration
003Deblurring; Sharpening
G06T 5/40
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
40by the use of histogram techniques
G06T 5/50
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
50by the use of more than one image, e.g. averaging, subtraction
H04N 5/23277
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
232Devices for controlling television cameras, e.g. remote control ; ; Control of cameras comprising an electronic image sensor;
23248for stable pick-up of the scene in spite of camera body vibration
23264Vibration or motion blur correction
2327performed by controlling the image sensor readout, e.g. by controlling the integration time
23277by combination of a plurality of images sequentially taken
H04N 5/2353
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
235Circuitry ; or methods; for compensating for variation in the brightness of the object ; , e.g. based on electric image signals provided by an electronic image sensor
2353by influencing the exposure time, e.g. shutter
H04N 5/35572
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
351Control of the SSIS depending on the scene, e.g. brightness or motion in the scene
355Control of the dynamic range
35536involving multiple exposures
35572sequentially taken, e.g. using the combination of odd and even image fields
Applicants
  • SAMSUNG ELECTRONICS CO., LTD. [KR]/[KR]
Inventors
  • PEKKUCUKSEN, Ibrahim
  • SHEIKH, Hamid R.
  • GLOTZBACH, John W.
Agents
  • Y.P.LEE, MOCK & PARTNERS
Priority Data
16/572,22716.09.2019US
62/845,99710.05.2019US
62/883,22806.08.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR COMBINING IMAGE FRAMES CAPTURED USING DIFFERENT EXPOSURE SETTINGS INTO BLENDED IMAGES
(FR) PROCÉDÉ ET APPAREIL POUR COMBINER DES TRAMES D'IMAGE CAPTURÉES À L'AIDE DE DIFFÉRENTS RÉGLAGES D'EXPOSITION, EN DES IMAGES COMBINÉES
Abstract
(EN)
A method for multi-frame blending includes obtaining a plurality of image frames of a scene, the plurality of image frames comprising a reference image frame captured with a shorter exposure time and a plurality of non-reference image frames captured with a longer exposure time, adjusting brightness and color of the reference image frame to match the non-reference image frames, obtaining a plurality of motion maps corresponding to the plurality of image frames respectively, blending the reference image frame and the non-reference image frames into a blended image based on the plurality of motion maps, and performing contour reduction on the blended image to reduce contour artifacts in the blended image.
(FR)
Un procédé de combinaison de trames multiples comprend l'obtention d'une pluralité de trames d'image d'une scène, la pluralité de trames d'image comprenant une trame d'image de référence capturée avec un temps d'exposition plus court et une pluralité de trames d'image non de référence capturées avec un temps d'exposition plus long, l’ajustement de la luminosité et de la couleur de la trame d'image de référence de sorte qu’elle corresponde aux trames d'image non de référence, l'obtention d'une pluralité de cartes de mouvement correspondant à la pluralité de trames d'image respectivement, la combinaison de la trame d'image de référence et des trames d'image non de référence en une image combinée sur la base de la pluralité de cartes de mouvement, et la réalisation d'une réduction de contour sur l'image combinée pour réduire les artéfacts de contour dans l'image combinée.
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